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Jul
24
comment Changing style of Proof
You cannot use \textit or \textbf because they're block-level and you need the bold effect to propagate beyond the \oldproofname (which is 'Proof' in English) so that the full stop is also in bold. TeX's modal \rm and \bf commands do that. It might have been better had I used \upshape\bfseries instead of \rm\bf as they're the LaTeX versions, but to be honest, I don't see a big difference.
Jul
24
awarded  Teacher
Jul
23
answered Changing style of Proof